Needle grass clump with fine threadlike green leaves and golden feathery seed heads

Needle Grass

Nassella tenuissima (syn. Stipa tenuissima)
Categories:
Grasses  ·  
Grasses
Light
Full sun (afternoon shade in low desert)
Water
Low water once established; water deeply and allow soil to dry between irrigations. Young plants need more regular watering. Avoid frequent watering during summer dormancy.
Size
1-2 ft tall × 1-2 ft wide
Habit
Clumping grass
Toxicity
Non-toxic
Description
Fine-textured perennial bunchgrass with threadlike leaves and airy seed heads. Assumes Mexican feather grass, commonly sold as Stipa tenuissima, now Nassella tenuissima; other needle grasses differ.
Bloom Time
Spring to summer
Deciduous / Evergreen
Semi-evergreen
Special Features
Drought Tolerant
Growth Rate
Moderate
Growth Habit
Clumping grass
Mature Size
1-2 ft tall × 1-2 ft wide
Flower Color
Pale green to golden
Foliage Color
Bright green aging to golden
Landscape Use
Border / Bed, Container / Patio, Desert / Xeriscape
Garden Style
Container / Patio, Desert / Xeriscape
Soil
Alkaline Tolerant, Sandy / Rocky, Well-Drained
Companion Plants
Autumn sage, Blackfoot daisy, Desert marigold, Red yucca, Smaller agaves
Non-toxic
Non-toxic
Care Instructions

Light: Full sun to light shade; afternoon shade is beneficial in Phoenix’s intense summer heat.

Water: Low water once established; water deeply and allow soil to dry between irrigations. Young plants need more regular watering. Avoid frequent watering during summer dormancy.

Soil: Well-drained sandy, gravelly, or loamy soil; tolerates alkaline soil. Avoid soggy conditions and heavy fertilization.

Mature size: About 1–2 feet tall and wide, reaching approximately 3 feet tall with flower stems.

Bloom: Airy flower clusters appear in spring to early summer; straw-colored seed heads persist afterward.

Evergreen / deciduous: Evergreen to semi-evergreen; may turn straw-colored or become dormant during extreme summer heat or drought.

Growth rate: Moderate to fast during cooler growing periods.